Heater.



J. s. WALKER.

HEATER.

APPLICATION FILED FEB. 1, 1911. 1,018,793, Patented Feb.27, 1912.

' 2 SHEETS-SHEET 1.

3 Ji 3T- 55 y 2 3;": i? ii 29 ll I x 27 1 Ht 1 d7 1 H: i f H: I We,

: Hi. i Hi I I 3 i' i g .9 21 W jg WITNESSES INVENTOR JZ/Z/ZciZ/J/Li?COLPMBIA PLANOGRAPH $0.. WASHINGTON, n. c.

J. S. WALKER. HEATER. APPLICATION FILED FEB. 1, 1911.

1,018,793. Patented Feb. 27, 1912.

2 SHEETS-SHEET z.

OLUMDIA PLANOGRAPH CQHWASHINGTON, D c.

tinrrnn s'rarns rarnnr canton.

JOHN S. WALKER, 0F PITTSBURGH, PENNSYLVANIA.

HEATER.

To all whom it may concern:

Be it known that 1, JOHN S. WVALKER, a citizen of the United States ofAmerica, residing at Pittsburgh, in the county of Allegheny and State ofPennsylvania, have invented certain new and useful Improvements inHeaters, of which the following is a specification, reference being hadtherein to the accompanying drawing.

This invention relates to heaters, and more particularly to that type ofheater commonly styled a hall heater, which is located beneath the floorin conjunction with a register to emit hot air into the compartmentabove the floor.

The primary object of my invention is to provide a heater of the abovetype that is compact and efficient for producing a large number of heatunits with a minimum expenditure of fuel.

Another object of the invention is to furnish a heater with means in amanner as will be hereinafter set forth whereby the heat units orproducts of combustion can be thoroughly utilized before escaping, andin a manner that will insure a safe operation of the heater withoutattention.

A further object of the invention is to accomplish the above results bya mechanical construction that is simple, durable, free from injury byordinary use and easy to install.

l/Vith these and such other objects as may hereinafter appear, theinvention consists of the novel construction, combination andarrangement of parts to be presently described in detail and thenclaimed.

Reference will now be had to the drawing, wherein Figure 1 is a sideelevation of the heater partly broken away and partly in section, Fig. 2is a plan of the heater with the cap or dome of the heater casingremoved, Fig. 3 is a horizontal sectional view of the heater on line YY,Fig. 1, Fig. 41 is a similar view taken on the line X-X of Fig. 1, Fig.5 is a front elevation of a portion of the heater, Fig. 6 is a bottomplan of the mixer casing, andFig. 7 is a horizontal sectional view online Z-Z, Fig. 1. V

The reference numeral 1 denotes a cylindrical casing having an openbottom 2 and the top thereof provided with a dome 3 adapted to beconnected to the register or a grate of a floor (not shown). The casing1 has the upper edges thereof provided with Specification of LettersPatent.

Application filed February 1, 1911.

Patented Feb. 27, 1912'.

Serial No. 606,014.

apertured lugs 4, and said casing can be munication with a right angularextension.

7, the end of said extension protruding into an opening 8 in the casing1, and said casing at the opening 8 is provided with a face plate 9having a hinged door 10, whereby easy access can be had to the extension7 The lower end of the burner casing 6 is closed by the upper flangededge 11 of a frusto-conical shaped mixer casing 12, said mixer casing.having the bottom thereof closed by a plate 13 having a plurality ofvents or openings 14- and a central opening 15 for the end of a gassupply pipe 16. In the casing 12 is a burner pipe 17 supporting a burner18 in the lower end of the casing 6, said burner pipe having a mixer 19of a conventional form.

The burner casing 6 adjacent to the lower end thereof is provided with aplurality of brackets 20, and mounted upon these brackets is a drum,comprising annular heads 21 and 22, an inner cylindrical shell 23 and anouter cylindrical shell 24:, the shell 23 being of a less diameter thantheshell 2a with the shell 23 arranged concentrically within the shell24 and both of said shells held between the heads 21 and 22 by annularflanges 25. The edges of the heads 21 and 22 are provided with aperturedlugs 26, and these lugs are connected by vertical tie-rods 27 to retainthe parts of the drum in an assembled position. The inner walls of theshells 23 and 241 are connected by a plurality of radially disposedpartitions 28, 29 and 29, said partitions being riveted or otherwise connected to the shells 23 and 2 1, as at 30. The partitions 29 extenddownwardly from the head 22 in proximity to the head 21 and thepartitions 29 extend upwardly from the head 21 in proximity to the head22, said partitions providing a sinuous or winding path through thedrum. The partition 28 extends from the head 21 to the head 22.

The head 22 is connected by a curved pipe 81 to a top plate 32 mountedupon the upper end of the burner casing 6, said top plate havingapertured lugs 33 connected by vertical tie-rods 34 to apertured lugs35, carried, by the flange 11 of the mixer casing 12.

The drum at a point adjacent to the head 21 thereof between thepartitions 2S and 29 is provided with an exhaust pipe 36 extendingthrough the wall of the casing 1 and adapted to be connected to achimney or carried to the exterior of a building.

It is through the medium of the door 10 and the extension 7 that the gasatthe burner 18 can be ignited, and as the products of combustion orheat units pass upwardly through the casing 6, the walls thereof areheated. The products of combustion passing through the pipe 31 into thedrum can only travel in one direction on account of the partition 28extending from the head 21 to the head 22. The products of combustionenter the top of the compartments A, pass downwardly under the partition29 into the compartment B, over the partition 29 into the compartment 0,under the partition 29 into the compartment I), over the partition .29into the compartment E, under the partition 29 into the compartment F,over the partition 29 into the compartment G, and then downwardly insaid compartment and through the exhaust pipe 36 to the atmosphere. Itis the passage of the products of combustionthrough the drum that heatsthe shells 23 and 24, and the cold air that-passes upwardly into thecasing 1 that contacts with the walls of the drum and the casing 6 willbe thoroughly heated before passing into the register above the heater.

It is thought that the operation and utility of the heater will beapparent without further description, and I reserve the right to makethe heater of various sizes whereby it can be used for heating small orlarge compartments.

What I claim is 1. A. heater comprising a vertical burner casing of thesame size throughout and provided with laterally-extending supportingbrackets at points removed from its lower end said casing rectangular inplan, a drum including an inner and an outer sect-ion surrounding theupper portion of the burner casing and supported by said brackets, saidinner section engaging the corners of the burner casing therebyproviding a plurality of compartments, a head for each end of the drum,means extending through certain of said compartments and engaglng saidheads for securing the inner portions of the heads in position, meansfor securing the outer portions of said heads in position, a pluralityof vertically-extending and radially-disposed partitions secured betweenthe sections of said drum and arranged to provide a sinuous path for theproducts of combustion, a plate for closing the upper end of the burnercasing, means extending through the other of said compartments forsecuring said plate in position, a mixer located at the lower end of theburner casing and partially closing the same, a curved pipe opening atone end into the drum and at its other end into the top of the burnercasing, a burner arranged within the lower end of the burner casing andabove said mixer, a right-angular hollow extension projecting from thelower end of the burner casing below the drum and providing meanswhereby access can be had to the burner, a casing inclosing said burnercasing and drum, and an exhaust pipe communicating with the drum.

2. A heater comprising a burner casing rectangular in plan, a plate forclosing the upper end of said casing, a mixer connected to the lower endof said casing and communicating therewith, a burner arranged within thecasing above said mixer, a drum surrounding the upperportion of saidcasing and having vertically-disposed means to provide a sinuous pat-hfor the products of combustion, said drum formed of an inner and outersection, means projecting from the burner casing for supporting thedrum, the inner section of said drum abutting against the corners ofsaid casing and providing a plurality of compartments and means extending through certain of the compartments for securing the innerportions of said heads in position, means for securing the outerportions of said heads in position, a curved pipe for establishingcommunication between the top of the drum and the top of the burnercasing, means whereby access can be had to said burner, a casinginclosing the drum and burner casing, and an exhaust pipe communicatingwith the lower portion of the drum.

In testimony whereof I afiix my signature in the presence of twowitnesses.

JOHN S. WALKER.

Vitnesses: 1

MAX H. SRoLovrrz, CHRISTINA T. H001).

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

